Cigarette pack laminate having raised sealing ridges

Details Cigarette pack laminate having raised sealing ridges Cigarette pack laminate having raised sealing ridges

1979-03-19

1981-02-17

Ross, Herbert F.

Special receptacle or package

For tobacco, pipe or cigarette holder

Sheet-formed receptacle

229 48T, B65D 8510

Patent

active

042509947

ABSTRACT:
A cigarette pack blank made from a laminate and having an outer layer of heat-weldable plastic is provided with raised, elongate ridges or beads 22, 24-26 on various fold flaps to facilitate hermetic sealing by the application of heat and pressure in spite of any minor irregularities or waviness in the planes of the flaps.

REFERENCES:
patent: 2259822 (1941-10-01), Kienlen
patent: 3017067 (1962-01-01), Parks
patent: 3079059 (1963-02-01), Kuchenbecker
patent: 3533548 (1970-10-01), Taterka
patent: 3952868 (1976-04-01), Muller
patent: 3986607 (1976-10-01), Foche

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